QQuakeFacts
USGS usb000k1il

28 Sept 2013, 12:13

66 km S of Hihifo, Tonga

A magnitude 5.5 mwc earthquake at 58.9 km depth.

Depth58.9 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated3 May 2022Latest timestamp stored in this record

Published location

Where is 66 km S of Hihifo, Tonga?

This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.

-16.550700, -173.836400

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What the numbers mean

Magnitude measures event size; depth locates the source below the surface. Neither value alone establishes local damage or personal risk.

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Catalog fields and provenance
Event ID
usb000k1il
Coordinates
-16.5507, -173.8364
Network
us
Significance
465